A068592 Number of different Euler multigraphs with n edges, loops forbidden.

0, 1, 1, 4, 4, 15, 22, 68, 131, 376, 892, 2627, 7217, 22349, 67271, 229553

Offset

1,4

References

Huaien Li and David C. Torney, Enumerations of Multigraphs, 2002.

Links

Table of n, a(n) for n=1..16.

Benjamin Stringer, Matrix Interpretations and Tools for Investigating Even Functionals, Master's Thesis, Univ. Of Kentucky, Theses and Dissertations-Computer Science (2022) 118.

Crossrefs

Sequence in context: A117187 A138767 A048282 * A198313 A219350 A222511

Adjacent sequences: A068589 A068590 A068591 * A068593 A068594 A068595

Keyword

nonn,more

Author

Huaien Li and David C. Torney (huaien_li(AT)hotmail.com), Mar 27 2002

Status

approved